Agricultural implement.



A. WYLES, InA

AGRICULTURAL NIPLEMENT.

APPLICATION FILED "FEBy 25 1913.

Patented Nov. 7, 1916.

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LBERT WYLES, JR., OF LEEDS, ENGLAND.

AGRICULTURAL IMPLEMENT.

Leonesa. i

Specification of Letters Patent.

Patented Nov. i, wie.

Application led February 25, 1913. Serial No. 750,587.

T all whom it may Concern l Bc it known that I, Anm-:ur Tru-1s, Jr., a 'subject of the King ofEngland', residing at j flseedsln the county of York, in England, -:shave invented certain new and useful Improvements in Agricultural Implements, of whichtheffollowingis a specification.

This invention comprises improvements relating to motordriven plows andv other power driven..vehicular agricultural implej ments,of that class in which the driving wheels may be raised and lowered relatively E to the frame of the implement.

'-.Various'means have been hitherto provided to avoid disturbing the engagement, of gearing for driving the wheels including mounting the axles in slotted bearings having a curved pat-h struck from the center of the driving gear, and mounting the wheels on cranked axles which may be adjusted by connections from the motor shaft; and it has also been proposed to mount the wheels on rocking arms which may be actuated by a hand leverto lift the frame clear of the ground and at the same time throw in gearingfor directly driving the wheels.

The present invention while applicable to power driven agricultural implements generally is especialljY adapted for use with motor driven implements such as described in. the specilication of my prior application Ser. Xo. '(382.481, filed 8th March, 19t?, and consists inv mounting each driving wheel of the machine on or ina separate rocking arm or lever pivoted at one end to the machine frame and the other end of which is free so that it may have intimement relativelyv to the frame, thus permitting each wheel carried b v `one ofv said arms to be raised or lowered independently of the other or others in order to compensate for differences of level of the surface on which the implement is traveling. Each oit said arms may be in operative connection with a, lever extending to a position within easy access oftheoperator. so that it can he manually operated thereby while the machine is in 'motion and held in the del sired position as 'by a quadrant and dog or ratchetdevice, yor any other appropriate means, such as worm or equivalent, may be used for actuating and securing the arm and consequently the wheel in the desired position.y

The transmission mechanism is so arranged as to be always operative whatever VJVVthe position of the wheel driven, and to this end the aforesaid arms carrying the Wheels are mounted on the same axial center as a shaft or equivalent of the motor transmission, for instance in the casel of sprocket and chain driving mechanism I may mount on the pivot of the arm double sprocket-wheels aboutone of which passes a chain extending to a sprocket oxrthe motor shaft, and about the other of which passes a second chain leading to another sprocket. integral with or mounted on the axle or hub oi' the running wheel in question, or again I mav mount on the pivot ofthe arm a spur-wheel gearing directly or indirectl) with a spur-wheel on the motor shaft and with a, spur-wheel on the wheel or axle thereof. Any other suitable means of transmission n1a \v be used so long as the condition is observed, that one axial center of the transmission coincides with the axis about which the arm carrying the ruiming wheel swings.

To compensate for movement of the transmission mechanism or gearing when adjusting the height ot' a wheel or wheels on one side of the vehicle in relation to that or those on the other side thereof. I may provide for example in the main sprocket shaft. (that is to sav the shaft forming the fulcrum of the wheel carrying arms) a ditl'erentialgearing so that any movement of the transmission mechanism on one side due to adjustment of the. wheel will not be transmitted to the mechanism at the other side. and in addition there may be provided means for locking said differential gearing at'tenndjustment whereby the wheels on both sides may be positively and invariably driven from the motor. since it' said ditierential gearing remained unlocked. skidding or slipping ot' one wheel with regard to the other might take place which is highly undesirable in this class of machine. In place ot' this diferential gearing the wheels may he separately driven through pawl and ratchet gears so that either wheel can overrun the ratchet gear when it requires to turn more quickly than the other running wheel.

A It is obvious that it'may be sutlicient to renderonljY the wheehor wheels on one side of the vehicle adjustable in`\-which case a rocking arm and operating mechanism for each wheel on such side is provided, while the wheel or wheels on the other side ma)v be mounted 4:1n any usual or convenientmanner.

The annexed drawing 1llustrates diagrammatically in Figure l in side eleva-tion, and in Fig. 2 in horizontal section. part of the frame work of apower driven "vehicle, showing one running wheel and means for its adjustment including a hand operated worm gear.

A represents a partv of the frame, and B a boss thereon on which rocks the arm C carrying the gudgeon D on which the hub E ofthe running wheel F revolves. G is a power shaft traversing the boss B and carrying the pinion H meshing with a toothed wheel l secured to the wheel F., The outer end of the arm C is formed as a toothed quadrantV J with which meshes a pinion K mounted on a stud L on the frame A.. `Witlr pinion K there also meshes aworm M on a shaft N, which latter is carried near to the.

guiding end of the frame A where it terminates in ahand wheel O. f

It will be obvious that the actual construetion may be' varied within the competence of any engineer and the drawing is intended as a diagrammatic example only.-

What l claim' as my invention and desire to securel by Letters Patent ofthe -United States is :-A

1. In an agricultural implement, the com# bination of a frame "having a projecting boss, a power shaft journaled in said 'frame and extending axially through the boss, a

wheel support pivoted 'at one end' on said boss and having a gear' segment on its other said gudgeon having its aXis parallel withA the axis of the power shaft, a gear fast on.v

the wheel, anda pinion on the power shaft adjacent the boss meshing with the said wheel gear, substantially as described.

2. In an agricultural implement, the combination or' a frame having a projecting boss, a power shaft journaled in saidframe and extending axially through the boss, a wheel support pivoted at one end on said boss and having a gear segment on its other end, a pinion rotatably mounted on the frame and vineshing with said segment, a worm mounted on the frame and engaging said pinion; a gudgeon attached to said support, a wheel on said gudgeon having its axis parallel with the a'Xis of the power shaft, a gear fast on the wheel, and a pinion on the power shaft adjacent the boss meshing with the said. wheel gear, substantially yas described. 'ln witness whereof I have signed this specification in the presence of two wit-f nesses.

ALBERT WYLES, JUNIOR.

Witnesses:

ALBERT WYLES, Sr., CHARLES E. LAYTOR. 

